magic-coder
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diff --git a/‎preview/demo.jpg renamed to ‎preview/demo.png b/‎preview/demo.jpg renamed to ‎preview/demo.png
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 Selector with wheel view, applicable to selecting money or other short length values.
 
 Screenshot of Demo:
-![Demo](https://raw.githubusercontent.com/lantouzi/WheelView-Android/master/preview/demo.jpg)
+![Demo](https://raw.githubusercontent.com/lantouzi/WheelView-Android/master/preview/demo.png)